Jathika Namal Uyana is one of Sri Lanka's distinctive natural heritage sites, combining forest conservation, geology and Buddhist history. It is well known for its Na forest, made up mainly of Ceylon ironwood trees (Mesua ferrea), Sri Lanka's national tree. The site also contains a rare rose quartz mountain range, with geological formations reported to be more than 550 million years old. The forest is associated with ancient Buddhist monastic traditions and contains archaeological remains such as stupas, stone pillars, inscriptions and other monastery structures. According to the Sri Lankan Cabinet decision of 16 March 2026, the government approved a proposal to declare National Namal Uyana a National Heritage site, recognising its environmental, geological and archaeological importance. The Cabinet document identifies the protected forest area as approximately 602 hectares. Some other sources publish different area figures, so the exact area depends on the boundary or section being described.